The first stable product of the C3 (Calvin) pathway is
AGlucose (a 6-carbon compound)
B3-PGA (a 3-carbon compound)
COAA (a 4-carbon compound)
DPEP (a 3-carbon compound)
Answer & Solution
Correct answer: B. 3-PGA (a 3-carbon compound)
3-Phosphoglyceric acid (3-PGA, three carbons) is the first stable product of the Calvin cycle.
In C4 plants the first stable product is OAA (four carbons), but the Calvin cycle still occurs downstream.
Keep practising Unit 8L: Biomes, Primary Productivity & Ecosystem Energetics
Browse all Unit 8L: Biomes, Primary Productivity & Ecosystem Energetics questions for AP Biology, or explore more Biology topics.
Related questions
Different amino acids differ from one another in their:Nucleic acids such as DNA and RNA are polymers of:Enzymes are best described as:The chemical bond that links amino acids together in a protein is the:Proteins are polymers made up of:The simplest amino acid, whose R group is a hydrogen atom, is:In a monocot (grass) embryo, the cotyledon is called the:In a dicot embryo, the portion of the embryonal axis above the level of cotyledons is the: